(S)-2-(叔丁基-二甲基-锡氧基)-丙醛 、 (Z)-1-<(2,3:4,6-di-O-isopropylidene-α-D-mannopyranosyl)oxy>-3-(tributylstannyl)prop-1-ene 在
三氟化硼乙醚 作用下,
生成 (2S,3R,4S)-2-(tert-Butyl-dimethyl-silanyloxy)-4-((3aS,4S,5aR,9aR,9bS)-2,2,8,8-tetramethyl-hexahydro-[1,3]dioxolo[4',5':4,5]pyrano[3,2-d][1,3]dioxin-4-yloxy)-hex-5-en-3-ol 、
(2S,3S,4R)-2-(tert-Butyl-dimethyl-silanyloxy)-4-((3aS,4S,5aR,9aR,9bS)-2,2,8,8-tetramethyl-hexahydro-[1,3]dioxolo[4',5':4,5]pyrano[3,2-d][1,3]dioxin-4-yloxy)-hex-5-en-3-ol